Alining plate for floor-hinges.



UNITED STATES PATENT OFFICE.

OSCAR KATZENBERGER, OF CHICAGO, ILLINOIS.

ALINING PLATE FOR- FLOOR-HINGES.

Original application filed November 8, 1910, Serial No. 591,306.

October 4, 1911.

To all whom it may concern:

Be it known that I, OSCAR KATZENBERGER, a citizen of the United States, and a resident of Chicago, in the count-y of Cook and State of Illinois, have invented a new and Improved Alining Plate for Floor-Hinges, of which the following is a full,-clear, and exact description.

My invention relates to an alining plate for floor hinges, and an object of my invention is to secure registry between the free vertical edge of the door and the central portion of the door jamb when the door is in closed position, without depending on the screws in the floor plate for the proper adjustment.

This application is a division of my Patent Number 996,413, dated June 27, 1911.

lVith the above and other objects in view, as will more fully hereinafter appear, the present invention consists in certain novel details of construction and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings and more particularly pointed out, in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views, and in which Figure 1 is a view illustrating my improved floor hinge and adjustment plate applied to a door; Fig. 2 is a fragmentary side view of a hinge plate showing the lower portion of the hinge frame and floor plate partly in vertical section; Fig. 3 is a plan of the floor plate shown in Fig. 4 with the adjustable cam-carrying member attached; Fig. i is a plan of a modified form of floor plate; Fig. 5 is an inverted plan view of the cam-carrying teeth; Fig. 6 is an edge view of the same; and Fig. 7 is a fragmentary section on the line 7-7 of Fig. 5.

In the means for pivoting doors to the floors now in common use, the alinement depends upon two set screws, which necessarily cannot stand up for any length of time due to the fact that as the door swings back and forth, the force of the blows is transmitted against these two screws which will eventually become loosened in their threads and allow the door to be moved some material distance before any action is obtained on the closing spring. By my improved device,

Specification of Letters Patent.

Patented Feb. 20, 1912.

Divided and this application filed Serial No. 652,727.

the shocks are primarily taken up by a rack adjustable on a set of teeth, thereby relieving, to a large extent, the blows on the means holding the floor plate to the floor. In arriving at this, and also lessening the friction between the floor plate and hinge frame in so far as possible, I provide a floor plate 12 having the usual screw openings for fastening it in place, and also provided with a large opening, at the point where the cam stem or stud is to be applied, this opening having at each side, a roughened portion or teeth 26.

A cam-carrying member, as shown in detail in Figs. 5 and 6, is constructed with' a boss 27 at the lower side, of a size to exactly fit within the opening 25, and having oppositely-arranged teeth or roughened portions 28 adapted to mesh or engage with the teeth 26. The cam-carrying member further comprises an intermediate adjusting plate 29 and a bearing plate 30, the adjusting plate being secured to the floor plate by machine screws 31, which pass through slots 32 (Fig. 5) formed in the adjusting plate 29 and threaded into the floor plate, the slots 32, when the screws are slightly loosened, giving the cam-carrying. member a limited turning adjustment. The boss 27 adjusting plate 29 and bearing plate 30 may be made of a single piece, but, as shown in Fig. 2, are made of separate plates riveted together. The cam-carrying member is provided with a central angular opening through which passes the angular portion of the stem or stud 13 of the cam 15, the stem or stud be-.

ing of suflicient length above the bearing plate to pass through a double thickness of the hinge frame carried by the door, the lower plate of this frame being cut out to form a bearing recess to receive the bearing rollers or balls 33, which are interposed between a bearing plate 34 at the bottom of the recess and the upper bearing face of the Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a floor hinge for doors, in combination, a floor plate having an opening therein, teeth on said plate disposed on the side of said opening, an adjusting plate, a boss depending from said plate and adapted to be rotatably mounted in said opening, teeth depending from said adjusting plate adapted to engage the teeth on the floor plate, a bearing plate carried by said adjusting plate, said bearing plate adapted to support the swinging door, and means for varying the relation of said adjusting plate with reference to said floor plate.

2. In combination, a floor plate having a vertically-extending opening therein, a set of teeth disposed on opposite sides of said opening, a door-carrying member journaled to rotate in said opening, said door-carrying membercomprising two superposed plates concentrically disposed with reference to said opening, the lower of said plates having teeth depending therefrom adapted to engage the teeth on the floor plate to hold the door in a predetermined position, the

upper of said plates carrying the door, and means adjustably fastening the two plates together, wherebythe predetermined position of the door may be varied when the sets of teeth are in engagement.

3. In a floor hinge, in combination, two superimposed plates pivotally connected to swing in parallel planes relative to each other, means carried by one plate for stopping the swing of one plate relative to the other at a definite point, and means disposed between said plates for changing said definite point.

4. In a door hinge, a floor plate having a circular opening therein, and a cam carrying member, comprising an adjustable plate having a depending boss rotatably mounted in said opening, and means holding said adjustable plate in various positions relative to said floor plate.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

OSCAR KATZENBERGER.

WVitnesses:

LEO. E. ZEOK, HUBERT L. BARTI-IoLoMEw.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

